LDP/LDP/retired/LFS/appendixa/psmisc-desc.xml

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<sect2><title>&nbsp;</title><para>&nbsp;</para></sect2>
<sect2><title>Short descriptions</title>
<para><command>fuser</command> reports the PIDs of processes that use
the given files or filesystems.</para>
<para><command>killall</command> kills processes by name. It sends a signal
to all processes running any of the given commands.</para>
<para><command>pidof</command> reports the PIDs of the given programs.
(Not this pidof program is used, however, but the one from Sysvinit.)</para>
<para><command>pstree</command> displays running processes as a tree.</para>
</sect2>